package com.weatherstation.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import jakarta.annotation.PostConstruct;

@Configuration
public class RedisConfig {
    
    private static final Logger logger = LoggerFactory.getLogger(RedisConfig.class);
    
    private final RedisConnectionFactory connectionFactory;
    
    public RedisConfig(RedisConnectionFactory connectionFactory) {
        this.connectionFactory = connectionFactory;
    }
    
    @PostConstruct
    public void init() {
        try {
            // 测试Redis连接
            connectionFactory.getConnection().ping();
            logger.info("Redis连接测试成功");
        } catch (Exception e) {
            logger.error("Redis连接测试失败", e);
        }
    }

    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);

        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        // 使用GenericJackson2JsonRedisSerializer来序列化和反序列化redis的value值
        template.setValueSerializer(new GenericJackson2JsonRedisSerializer());

        // Hash的key也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(new StringRedisSerializer());
        // Hash的value也采用GenericJackson2JsonRedisSerializer的序列化方式
        template.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());

        template.afterPropertiesSet();
        return template;
    }
    
    @Bean
    public StringRedisTemplate stringRedisTemplate() {
        StringRedisTemplate template = new StringRedisTemplate();
        template.setConnectionFactory(connectionFactory);
        return template;
    }
}
